1057210756 has 24 divisors (see below), whose sum is σ = 2238800256. Its totient is φ = 426437760.

The previous prime is 1057210727. The next prime is 1057210811. The reversal of 1057210756 is 6570127501.

It is a happy number.

It is a super-2 number, since 2×1057210756² = 2235389165204183072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110040 + ... + 1110991.

It is an arithmetic number, because the mean of its divisors is an integer number (93283344).

Almost surely, 2^1057210756 is an apocalyptic number.

It is an amenable number.

1057210756 is an abundant number, since it is smaller than the sum of its proper divisors (1181589500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1057210756 is a wasteful number, since it uses less digits than its factorization.

1057210756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221059 (or 2221057 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 34.

The square root of 1057210756 is about 32514.7775019298. Note that the first 3 decimals coincide. The cubic root of 1057210756 is about 1018.7177132754.

The spelling of 1057210756 in words is "one billion, fifty-seven million, two hundred ten thousand, seven hundred fifty-six".